S-90033A331 Length 2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide Steel finish, extending service life in demanding industrial environments.
• Excellent thread-forming capability for A/AB type sheet metal, creating strong, reliable threads without pre-tapping.
• Optimal flush installation with 82° countersink angle and flat head design, preventing snagging and ensuring a smooth surface finish.
• Maximum holding power through fully threaded design, distributing load evenly along the entire 2" length for secure fastening.
• Enhanced drive stability with Phillips No. 2 drive, reducing cam-out and improving installation efficiency.
• Precision compatibility with No. 21 drill bit (0.159" diameter), ensuring accurate pilot holes for up to 0.025" thick sheet metal.
• Regulatory compliance assurance meeting RoHS 3 and REACH standards, supporting sustainable and safe manufacturing practices.

Professional Applications & Engineering Value

These No. 10-12 thread forming screws are specifically engineered to address common challenges in sheet metal fabrication, such as material splitting and weak thread retention. The Black-Oxide Steel construction provides a durable barrier against oxidation, crucial for outdoor or humid applications. With a fully threaded right-hand design and 12 threads per inch, they deliver consistent clamping force and vibration resistance, reducing the need for frequent maintenance in assemblies like HVAC ducts, electrical enclosures, and automotive panels. The Phillips flat head and standard profile ensure easy, flush mounting, minimizing protrusion risks while the thread forming action cold-forms threads, enhancing joint integrity without chips.

Specification Summary & Compliance

This product adheres to standard inch measurements with a thread diameter of 0.19" and length of 2", classified under A/AB tapping screw type for thread forming applications. It meets industry-recognized standards for dimensional accuracy, including the specified 82° countersink angle and fully threaded configuration. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) is confirmed, ensuring the absence of restricted substances and supporting environmental and health safety in industrial use.